I do not know about 1 day early but i do know there will be a zombie campaign, Nuketown Zombies, and Tranzit. Do not quote me on that. They really have not released much info on other zombie maps except, "This will be the biggest zombie map we have ever made."

There are some people that legitimately got the game early, BETA testers, promotions, or sponsorship. Should they get a ban or stat reset? I think I can live with having to put a little more extra effort into reaching the top of the leaderboard. Just makes that top spot all the more appealing